Solved

Windows Forms: Full Screen on secondary display problem

Posted on 2009-04-09
2
2,412 Views
Last Modified: 2013-11-07
Hi,

I've got some .NET windows forms which I am trying to display in full screen mode (i.e. takes up the entire display, start bar and all), yet I"m having difficulties getting it to display on the correct monitor.  

My code looks as per the code snippet attached.  As you can see, I've tried both setting both the Location and the Bounds properties of the form, both of which _appear_ to place the form in the correct position, i.e. its location property becomes 1024,0 in 1024x768 res.  However, when the form is rendered, it still appears on the primary screen.  If I switch the check in the GetSecondaryScreen method to return the primary screen, rather than the secondary, the result is exactly the same; it still fills up the monitor.
public FullScreenForm()

		{

			Screen displayScreen = GetSecondaryScreen();

			if (displayScreen != null)

			{

				// Properties needed for full screen-ness.

				this.MaximizeBox = false;

				this.MinimizeBox = false;

				//this.TopMost = true;

				this.FormBorderStyle = FormBorderStyle.None;
 

				// Place the window in the secondary screen

				this.Size = new System.Drawing.Size(displayScreen.WorkingArea.Width, displayScreen.WorkingArea.Right);
 

				//this.Location = screen.WorkingArea.Location;

				this.Bounds = new System.Drawing.Rectangle(

					displayScreen.WorkingArea.X, displayScreen.WorkingArea.Y, displayScreen.WorkingArea.Width, displayScreen.WorkingArea.Right);
 

			}

		}
 

		private Screen GetSecondaryScreen()

		{

			if (Screen.AllScreens.Length <= 1)

			{

				return null; 

			}

			foreach (Screen screen in Screen.AllScreens)

			{

				if (!screen.Primary)

				{

					return screen;

				}

			}
 

			return null;

		}

Open in new window

0
Comment
Question by:neotechnology
2 Comments
 
LVL 18

Accepted Solution

by:
DarrenD earned 500 total points
Comment Utility
Hi,

I have two forms that I display on two seperate monitors.

On each form at design time I specify the following:

FormBorderStyle = None
StartPosition = Manual

Then I have a main form which I load the other two forms. I use the following code

  Private Sub ShowForm1()

    MyFrm1.Location = New System.Drawing.Point(20, 100)
    MyFrm1.WindowState = FormWindowState.Maximized
    MyFrm1.ShowDialog()

  End Sub

  Private Sub ShowForm2()

    MyFrm2.Location = New System.Drawing.Point(1500, 100)
    MyFrm2.WindowState = FormWindowState.Maximized
    MyFrm2.ShowDialog()

  End Sub

I know this is VB.NET but I'm sure you get it.

Hope this helps,

Darren
0
 

Author Closing Comment

by:neotechnology
Comment Utility
Thanks for that, solved my problem.  The hint was that I was trying to set the Location property in the constructor, which was being changed once I called Show() on the form.  I've since created a new method for showing, and set the Location in that before calling Show(), now it works fine.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now